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Finding the Fourth Proportional to 84,606, 126,909 and 35,358

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Solution

The fourth proportional to 84,606, 126,909 and 35,358 is: 53,037

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,606 : 126,909 = 35,358 : x
  2. Step 2: Convert to fraction form
    84,606/126,909 = 35,358/x
  3. Step 3: Cross multiply
    84,606x = 126,909 × 35,358
  4. Step 4: Simplify right side
    84,606x = 4,487,248,422
  5. Step 5: Solve for x
    x = 4,487,248,422/84,606
  6. Step 6: Final answer
    x = 53,037

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.